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<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US">Those
are all good points, Paul.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US">The
technical aspects of the testing have to be in line with real
world expectations about what we think we are bring told. The
disconnect is large. People buying carbon offsets think they
are getting a payoff in standing trees.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US">Switching
to non-woody biomass is using a biomass resource but not a
tree resource and many people have that as a goal.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US">The
thing is, this is not a stove function (to think of such
things). If a stove is rated for performance, it can be
assessed on relative efficiency against a baseline and
demonstrate benefits.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US">The
analysis you speak of – which fuel goes in and how those fuels
are or are not in surplus in the community – is not a function
of the performance test. It is an analysis carried out
afterwards using the data contained in the stove test.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US">I
think we have to resist the temptation to have the test method
driven by any particular agenda, even though those agenda are
real, exist and valid. When we turn on the lights to have a
meeting, the protocol for testing lights does not dictate what
kinds of meeting it is allowed to illuminate or give different
answers depending on what is being discussed.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US">Once
the correct questions are asked, the stove testing method can
give answers, relative ones or absolute ones. If there is
something missing from the test that is needed in to inform
the conversation, the need must be clearly stated. <o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US">The
needs to date have centered on fuel consumption calculated in
a particular manner. It is not the only question to ask.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US">So,
what are the questions you want answered? They have to be
related to the performance of the stove, not how they fit into
some other box or square hole. Stove testing is not about
policy (much).<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US">Regards<o:p></o:p></span></p>
<span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US">Crispin</span>
<pre class="moz-signature" cols="72">
</pre>
On 4/8/2013 12:10 AM, Mark Ludlow wrote:<br>
</div>
<blockquote cite="mid:002e01ce3417$5433b4d0$fc9b1e70$@ludlow.com"
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<p class="MsoNormal"><span
style="font-size:11.0pt;color:#1F497D;">Very good
points, Paul!<o></o></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;color:#1F497D;"><o> </o></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;color:#1F497D;">Mark<o></o></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;color:#1F497D;"><o> </o></span></p>
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<p class="MsoNormal"><b><span
style="font-size:11.0pt;">From:</span></b><span
style="font-size:11.0pt;"> <a class="moz-txt-link-abbreviated" href="mailto:biochar@yahoogroups.com">biochar@yahoogroups.com</a>
[<a class="moz-txt-link-freetext" href="mailto:biochar@yahoogroups.com">mailto:biochar@yahoogroups.com</a>] <b>On Behalf Of
</b>Paul Anderson<br>
<b>Sent:</b> Sunday, April 7, 2013 9:51 PM<br>
<b>To:</b> Discussion of biomass cooking stoves;
Hugh McLaughlin; Bob Fairchild;
<a class="moz-txt-link-abbreviated" href="mailto:biochar@yahoogroups.com">biochar@yahoogroups.com</a><br>
<b>Subject:</b> [biochar] Understanding FUEL
EFFICIENCY vs Energy efficiency<o></o></span></p>
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<p>Dear Stovers and Biochar makers,<br>
<br>
We are NOT sufficiently emphasizing that
TLUDs/char-maker stoves can use <br>
fuel other than stick wood. When burning
briquettes and pellets and <br>
cobs and shells (which most other stoves cannot
burn very well), we are <br>
NOT burning tree-sourced fuel.<br>
<br>
Crispin correctly says that a kg of wood in and
pyrolyzed is no longer <br>
wood, and therefore is FUEL used, and that relates
to FUEL Efficiency. <br>
TLUDs can consume more wood because they are
converting some of that <br>
wood into charcoal. That is different from ENERGY
efficiency, which <br>
can allow calculations for the energy in the
charcoal that is not used.<br>
<br>
Especially in char-making stoves, energy
efficiency is better than the <br>
fuel efficiency IF USING WOOD. But if the fuel is
not wood, then the <br>
WOOD-FUEL efficiency is 100% (none was burned in
the cooking of the <br>
meal), and the ENERGY efficiency might be very
good, while the FUEL <br>
efficiency (burning ag residues, dung, etc) might
be low in comparison <br>
with other stoves, but no trees were cut or
burned.<br>
<br>
About the above, there will need to be some
education given to the stove <br>
community (including GACC and manufacturers and
governments). WHAT fuel <br>
is burned does make a difference if FUEL
efficiency is an important <br>
criteria when evaluating stoves.<br>
<br>
Just because wood is the traditional fuel used in
stove testing does not <br>
mean that stoves that can also burn OTHER biomass
should be judged on <br>
the WOOD-FUEL efficiency calculations. For places
like Haiti, Rwanda, <br>
and many large zones of numerous large countries,
to be able to cook <br>
WITHOUT FOREST DEGRADATION should be a major
reason for choosing TLUD <br>
stoves.<br>
<br>
Having written about this here does not mean that
the message has <br>
reached the decision makers and those who report
test results on <br>
cookstoves. And the makers of "stick-wood-burning
stoves" are unlikely <br>
to want to tell this message to others.<br>
<br>
Because the GACC is about stoves AND FUELS, I hope
that proper <br>
recognition can be given in the discussions and
decisions about the <br>
stoves that can have 100% avoidance of cutting
wood, if that is important.<br>
<br>
Paul<br>
<br>
-- <br>
Paul S. Anderson, PhD aka "Dr TLUD"<br>
Email: <a moz-do-not-send="true"
href="mailto:psanders%40ilstu.edu">psanders@ilstu.edu</a>
Skype: paultlud Phone: +1-309-452-7072<br>
Website: <a moz-do-not-send="true"
href="http://www.drtlud.com">www.drtlud.com</a><o></o></p>
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